'use strict';

const Service = require('egg').Service;
const {ObjectId}=require("mongodb")
class ArticleService extends Service {
  async find(id=null) {
    var db=this.app.mongodb;
    var res=await db.collection("article").find({_id:ObjectId(id)}).toArray();
    return res;
  }
}

module.exports = ArticleService;
